Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e2db16c909f69c9…

MALICIOUS

PDF

33.7 KB Created: 2021-06-19 02:49:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: be4d9f1807a3fe054b045d0042d8df35 SHA-1: e67becf0cf91184473299fef833f092e40e7155e SHA-256: 9e2db16c909f69c9f1e165e44bd6b2e83ec05d9059223fb3913a47952b163c71
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA or human verification prompt, a common lure for users seeking game cheats or hacks. It contains numerous embedded URLs pointing to sites offering such content, with one URL specifically identified as a malicious external URI. The ML classifier also flagged this PDF as malicious with high confidence. The presence of these elements suggests the document is designed to trick users into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-free-accawt-game-hack
    • https://www.xenonsvjetla.com/files/free-earn-robux_GM431946152.pdf
    • https://www.xenonsvjetla.com/files/minecraft-hack-download_GM479516143.pdf
    • https://www.xenonsvjetla.com/files/free-roblox-books_GM431946152.pdf
    • http://xenonsvjetla.com/files/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdf
    • http://xenonsvjetla.com/files/robux-free-2021_GM431946152.pdf
    • https://www.xenonsvjetla.com/files/free-robux-with-no-human-verification_GM431946152.pdf
    • https://www.xenonsvjetla.com/files/pokemon-go-free-and-nintendo-switch_GM1094591345.pdf
    • https://www.xenonsvjetla.com/files/easy-way-to-get-free-robux_GM431946152.pdf
    • http://xenonsvjetla.com/files/hackear-juego-coin-master_GM406889139.pdf
    • https://www.xenonsvjetla.com/files/coin-master-hack-game_GM406889139.pdf
    • http://xenonsvjetla.com/files/how-do-you-hack-roblox_GM431946152.pdf
    • http://xenonsvjetla.com/files/daily-coin-master-free-spin-apk_GM406889139.pdf
    • http://xenonsvjetla.com/files/robux-redeem_GM431946152.pdf
    • http://xenonsvjetla.com/files/free-roblox-hair-codes_GM431946152.pdf
    • https://www.xenonsvjetla.com/files/coin-master-hack-app-link_GM406889139.pdf
    • http://xenonsvjetla.com/files/free-robux-with-no-survey_GM431946152.pdf
    • https://www.xenonsvjetla.com/files/free-roblox-girl-hair-not-a-model_GM431946152.pdf
    • https://www.xenonsvjetla.com/files/how-to-hack-a-roblox-account-2021_GM431946152.pdf
    • https://www.xenonsvjetla.com/files/hack-version-of-coin-master_GM406889139.pdf
    • http://xenonsvjetla.com/files/coin-master-gift-link-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f52.bin
2aa84880f9c22a2cc5c08347bb6779dc5ad28ea3c768cecb94350b5409f756b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F52 21612 bytes
font_01_sfnt_off00005eb6.bin
ab307580a594221236515d5b47a66650418f753cae9c19c292e37ae94898ce39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB6 18920 bytes

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